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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-01-20 00:00:27 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-01-25 01:10:14 +0100 |
| commit | 9e3d09f435f83f9653056b2fecc4d03ac45f3ffd (patch) | |
| tree | 87a2cd4ff1377b96f01b80aea1ae5152bb1f86ce /libavformat/asfdec_o.c | |
| parent | b897b5261820ff767f614770648abaa8a2880ec0 (diff) | |
avformat/asfdec_o: Check for EOF in asf_read_marker()
Fixes: Timeout
Fixes: 26460/clusterfuzz-testcase-minimized-ffmpeg_dem_ASF_O_fuzzer-5710884393189376
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat/asfdec_o.c')
| -rw-r--r-- | libavformat/asfdec_o.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/asfdec_o.c b/libavformat/asfdec_o.c index 6ce5a3fb43..3729adee2f 100644 --- a/libavformat/asfdec_o.c +++ b/libavformat/asfdec_o.c @@ -245,6 +245,9 @@ static int asf_read_marker(AVFormatContext *s, const GUIDParseTable *g) avio_skip(pb, 4); // flags len = avio_rl32(pb); + if (avio_feof(pb)) + return AVERROR_INVALIDDATA; + if ((ret = avio_get_str16le(pb, len, name, sizeof(name))) < len) avio_skip(pb, len - ret); |